SIP 487 Request Terminated Error
The 487 Request Terminated error in SIP means that a call request was canceled before it could be completed. The server notifies the client that the request has been terminated. In most cases, this issue is not caused by the softphone itself.
Main Causes of 487 Request Terminated
- The call was canceled by the user
- Connection was interrupted by the server or provider
- Timeouts or network-related interruptions
- Call routing or request handling issues
- Provider policies or internal restrictions
How to Fix the 487 Request Terminated Error
- Check if the call was manually canceled
- Try making the call again
- Verify network stability
- Ensure the dialed number and routing are correct
- Contact your VoIP provider for detailed diagnostics
The 487 Request Terminated SIP error usually indicates that the request was canceled before completion. In most cases, the cause is on the server or network side rather than the softphone.